(1) The status quo cannot be maintained but is necessarily altered by the injunction;
(2) Determination of issues of veracity and/or probability of fact from affidavits of the opposing parties that are contradictory and, under the circumstances, untrustworthy rather than from oral examination in open court is subject to grave error;
(3) Error in issuing the injunctive relief is usually irreparable to the opposing party; and
(4) Delay incident to the normal course of appellate practice frequently makes ultimate correction of error in law or in fact unavailing in the particular case.